1. Develop 3 sigma level process control charts for monitoring weight of bags that contain apples. You performed 4 weeks of samplings with 3 observations each (n = 3). Calculate and show values for UCL, CL, and LCL using the table (do not calculate standard deviation, use the table below). Draw control chart(s). Discuss your findings. Is everything okay?

week 1 week 2 week 3 week 4 22 28 30 28 24 26 28 20 24 24 24 26 Factors for 3 Sigma Level Sample Control Limit Factor Control Limit Factor Size for Sample Mean for Sample Range n A2 D3 D4 2 1.880 0 3.267 3 1.023 0 2.575 4 0.729 0 2.282 5 0.577 0 2.116 10 0.308 0.223 1.777 15 0.223 0.348 1.652 20 0.180 0.414 1.586 week 1 week 2 week 3 week 4 22 28 30 28 24 26 28 20 24 24 24 26 Factors for 3 Sigma Level Sample Control Limit Factor Control Limit Factor Size for Sample Mean for Sample Range n A2 D3 D4 2 1.880 0 3.267 3 1.023 0 2.575 4 0.729 0 2.282 5 0.577 0 2.116 10 0.308 0.223 1.777 15 0.223 0.348 1.652 20 0.180 0.414 1.586